Although they have not thrown an MLB pitch in 2023, Daniel Castano threw 1,680 pitches that were tracked by the PITCHf/x system between 2020 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Cutter (87mph) and Slider (81mph), also mixing in a Change (84mph), Fourseam Fastball (92mph) and Sinker (89mph).
In 2022, compared to other LHP:
His cutter has some natural sink and has strong cutting action. His slider has short glove-side cut, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. His change is a real worm killer that generates an extreme number of groundballs compared to other pitchers' changeups, has slight cut action, is slightly firmer than usual and has some natural sink to it. His fourseam fastball has heavy sinking action, is basically never swung at and missed compared to other pitchers' fourseamers, has much less armside movement than typical and has essentially average velo. His sinker is basically never swung at and missed compared to other pitchers' sinkers, has surprisingly little armside run, results in many more groundballs compared to other pitchers' sinkers and has some natural sinking action.